Finding the Fourth Proportional to 77,203.23, 115,787.41 and 39,214.02
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Solution
The fourth proportional to 77,203.23, 115,787.41 and 39,214.02 is: 58,812.18
Step by Step Solution
- Step 1: Write the proportion equation
77,203.23 : 115,787.41 = 39,214.02 : x - Step 2: Convert to fraction form
77,203.23/115,787.41 = 39,214.02/x - Step 3: Cross multiply
77,203.23x = 115,787.41 × 39,214.02 - Step 4: Simplify right side
77,203.23x = 4,540,489,615.42 - Step 5: Solve for x
x = 4,540,489,615.42/77,203.23 - Step 6: Final answer
x = 58,812.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.